pump and run the full reservoir of fresh water alternately through the brew group and
steam wand to remove all the cleaning solution form inside the boiler. The shower screen
will act as a filter and catch any minerals that have become dislodged during the
decalcifying process. After the Silvia cools down remove the shower screen and water jet
breaker and clean them as described later in this manual.
WARNING: If the shower screen and water jet breaker are not in place when the pump
is on you can be seriously burned. Without these parts in place a hot stream of water
under high pressure will shoot out from the brew group directly toward where you would
be standing in front of it.
Step-by-Step instructions.
1. Prime boiler through the steam wand and brew group.
2. Let the machine heat up for five minutes
3. Dissolve once package of decalcifier into four cups of hot water and pour it into
the reservoir.
4. Turn on the pump and run 6 ounces of water through the brew group and 6 ounces
through the steam wand.
5. Let the machine sit while in the on position for five minutes.
6. Turn on the pump and run the remaining solution in the reservoir alternately
through the brew group and steam wand (most through the brew group).
7. Remove the reservoir and clean it thoroughly.
8. Fill the reservoir with water and place it back into the machine.
9. Turn on the pump and run the full reservoir of fresh water alternately through the
brew group and through the steam wand (most through the brew group).
10. This process is now complete.
11. You will now want to remove the shower screen and clean it thoroughly as
described in the following instructions.
2 Brewing components
The brewing components are the parts and pieces of the machine that are used to brew the
espresso. They include the Shower Screen, Water Jet Breaker, Brew Group, Portafilter
and the Filter Basket. All of these parts do come in contact with the coffee and must be
cleaned on a regular basis. Any old coffee and coffee oil will impart a bitter taste to your
fresh espresso and will impair the proper and even water flow through the coffee giving
you a poor extraction. The following are instructions for cleaning all the parts that make
up the brewing components.
Back Flushing
Rancilio recommends that you do not back flush the Silvia. If you start to have leaking
into the drip pan when brewing or when the machine is sitting idle the three-way solenoid
valve may need cleaning. In this case it can be taken apart for cleaning. Please contact
us for info on taking care of this type of problem.
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